The surname Cains is of both English and Hebrew origin, deriving firstly from the medieval given name Cain, which itself is a latinised form of the Hebrew name Qayin. In biblical history Qayin is the eldest son of Adam and Eve, and the surname is therefore regarded as a patronymic, indicating descent from an individual named Cain.

In England, the name appears in several orthographic variants, including Caines, Kaines, and Keynes. Its earliest documented appearance is in the Domesday Book of 1086, where it records holders in the counties of Cambridge, Berkshire, Northampton, and Sussex. These early bearers were likely followers of the Norman forces that landed in England in 1066, and they received substantial land grants as a reward for their participation in the invasion. The first recorded individual is believed to be William de Cahaignes of Cambridge, though other contemporary claimants such as William de Caynes in the Curia Regis rolls of 1222 and John de Kaynnes in the Hundred Rolls of 1273 are also attested.

The place-name derivation of Cains arises from the numerous localities in England called Caines or Cains, which are rooted in the Old English words cegn or caegn meaning ‘priest’. These places effectively designated a former priest’s dwelling, and the surname was adopted by those who possessed or inhabited such estates. The spread of the name in the medieval period is marked by the establishment of villages bearing the name, such as Keynes Court in Wiltshire, and Combe Keynes and Winkley Keynes in Devon, all around the mid‑14th century.

In addition to its English roots, Cains is also an anglicised form of the Gaelic-Irish surname Ó Catháin, meaning ‘descendant of Catháin’. The personal name Catháin is derived from cath meaning ‘battle’, and the earliest recorded instance of the surname in England dates to 1379 in a Close Roll of the Court of Chancery. A notable early bearer was a woman named Joan Cans, mentioned in the Records of the Parliament of Scotland in 1390. The family subsequently spread through Norfolk and Suffolk and reached London and other parts of England.

In contemporary times, the surname remains most common in the United Kingdom, where it ranks as the 67th most frequent surname nationwide and the 48th most common in Northern Ireland. According to the Ireland Census it is the 57th most common, while in Australia it occupies roughly the 377th position. The name is also found in the United States, Canada, South Africa, New Zealand, and Australia, with an estimated global total of around 8,000 individuals bearing the surname. Its presence in these latter countries is largely the result of British colonial expansion and migration from Europe during the 17th and 18th centuries.

Notable individuals who have carried the surname include David Cains, an Australian politician; Clarence Cains, a World War II fighter pilot; William Cains, an English cricketer; and Osborn Cains, an American politician. The name has also been associated with the distinguished economist John Maynard Keynes, whose surname is a close variant of Cains. Variants of the surname include Cain, Cane, Kain, Kaine, Kayne, Kaynes, Kaing, Keyne, Kaines, and Cayne, reflecting the diverse linguistic and regional influences that have shaped its evolution over the centuries.

Typical given names associated with the Cains surname

Male

  • Andrew
  • Anthony
  • Daniel
  • David
  • Fenton
  • Ian
  • John
  • Kevin
  • Michael
  • Neil
  • Paul
  • Richard

Female

  • Ann
  • Christine
  • Eileen
  • Jane
  • Jayne
  • Linda
  • Patricia
  • Rebecca
  • Sarah
  • Sheila
  • Shirley
  • Susan
  • Zena

Similar and related surnames

Related and similar names are generated algorithmically based on the spelling, and may not necessarily share an etymology.

How to communicate the surname Cains in...

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There are approximately 551 people named Cains in the UK. That makes it one of Britain's least common surnames. Only around eight in a million people in Britain are named Cains.

Origin: English

Region of origin: British Isles

Country of origin: England

Religion of origin: Christian

Language of origin: English

The Genealogist - UK census, BMDs and more online

Famous people named Cains

  • Harriet Cains - Actress
  • Carole Cains - Australian politician

Names and descriptions courtesy of Wikipedia, and may contain errors. This is not intended to be an exhaustive list of every famous person with this name.

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